Although little is known about it at the moment, it is said that taking a WooHooium ingot and putting it on either side of a double bed means that no WooHoo will ever be rejected. Little hearts appear from the ingots when the WooHoo is in progress. This metal looks different from other metals; WooHooium has a heart on it in the space (on the ingot itself) where most metals in The Sims 3 have a PlumbBob.

A fairly easy way of obtaining WooHooium is by failing to sculpt a stone sculpture. However, it is not a reliable way, as the breaking of the stone sculpture itself is random, and Woohooium is just one of the metal/gems that can be acquired through this method.

It is possible for a dog with a high hunting skill to use "sniff out collectible" and thereby obtain Woohooium randomly. While this method is also not perfect, all the gems/metals/rocks received in the interim make this method, if not always successful, at least profitable. Werewolves may also acquire it during hunting.